Table 4.

Gaussian models for the gypsovags collected from both gypsum and calcareous soils exclusively in Madrid. The P-value of the corresponding analysis of deviance and the mean value of each variable in each class are indicated

Variable	Teucrium polium subsp. capitatum	Linum suffruticosuma
Ash	ns	ns
Ca	ns	ns
C	ns	ns
C/N	ns	0·001
		Ca = 17·84; Gy = 16·39
Mg	ns	0·001
		Ca = 2·71; Gy = 2·63
N	ns	0·0004
		Ca = 24·43; Gy = 27·9
Na	ns	ns
P	ns	0·004
		Ca = 1·44; Gy = 1·66
K	ns	ns
S	ns	0·0032
		Ca = 0·06; Gy = 0·07

^aCa = calcareous soils; Gy = Gypsum soils.

ns indicates that predictors do not explain a significant fraction of deviance. See text for details on statistics. n = 5.